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Cleaned up process table structure: removed p_type, p_pendcount.

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Removed stop sequence when MINIX is shut down.
Disabled send mask checks --- to be replaced by proper mechanism.
Fixed bug relating to 'shutdown -x'.
Simplified clock accounting of realtime.
Updated Makefiles for mkdept script.
This commit is contained in:
Jorrit Herder
2005-06-24 16:24:40 +00:00
parent 5654996c07
commit a408699ce0
19 changed files with 153 additions and 630 deletions
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13
kernel/proc.c
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@@ -146,17 +146,20 @@ message *m_ptr; /* pointer to message in the caller's space */
case SENDREC: /* has FRESH_ANSWER flag */
/* fall through */
case SEND:
if (! isalive(src_dst)) {
if (isemptyp(proc_addr(src_dst))) {
result = EDEADDST; /* cannot send to the dead */
break;
}
mask_entry = isuser(src_dst) ? USER_PROC_NR : src_dst;
#if DEAD_CODE /* to be replaced by better mechanism */
mask_entry = isuserp(proc_addr(src_dst)) ? USER_PROC_NR : src_dst;
if (! isallowed(caller_ptr->p_sendmask, mask_entry)) {
kprintf("WARNING: sys_call denied %d ", caller_ptr->p_nr);
kprintf("sending to %d\n", proc_addr(src_dst)->p_nr);
result = ECALLDENIED; /* call denied by send mask */
break;
}
#endif
result = mini_send(caller_ptr, src_dst, m_ptr, flags);
if (function == SEND || result != OK) {
@@ -337,7 +340,7 @@ message *m_ptr; /* pointer to message buffer */
/* Destination is not ready. Add the notification to the pending queue.
* Get pointer to notification message. Don't copy if already in kernel.
*/
if (! istaskp(caller_ptr)) {
if (! iskernelp(caller_ptr)) {
CopyMess(proc_nr(caller_ptr), caller_ptr, m_ptr,
proc_addr(HARDWARE), &ntf_mess);
m_ptr = &ntf_mess;
@@ -489,8 +492,8 @@ register struct proc *rp; /* this process is no longer runnable */
rp->p_ready = 0;
#endif
/* Side-effect for tasks: check if the task's stack still is ok? */
if (istaskp(rp)) {
/* Side-effect for kernel: check if the task's stack still is ok? */
if (iskernelp(rp)) {
if (*rp->p_stguard != STACK_GUARD)
panic("stack overrun by task", proc_nr(rp));
}